Pneumatic-tire tool



Feb. 24, 1931. J. A. @909mm PNEUMATIC TIRE TooL Filed May.v i1, i928 IN VEN TOR. W55 A GOOQMA/y.

BY@ @62mm ATTORNEY Patented Febj24, 1913i",- e i :if f l 7g3 Y' v STATES minus A. GOODMAN, or' soii'iirearn,l cAi-Lironiiia f rNEUiuAjrick-rinn l'ioon i I I Application filed May 1.1, 1928. Serial lvm-276,977. it n l My inyention relates to a tire tool to facilitail and particularlysetforth inthe appended tate the'mounting and dismounting of tires claim, referencebeing had to the accompanyon and from tire rims. 1 Y ing drawings and to the characters of'referl The obiects of my invention are: first, to ence thereon vwhich forma part of this appli'- provide atiie tool of this cla-ss which is par: cation in which: 55

ticularly adapted 'for mounting and disA` Y Figure lis a cross sectional yview. of'atire mounting tires on and from unitary tire rims, rim 'and `a tire mounted thereon and my tire that is, tire rims 'Whichare not ,split or sepatool extended around the same in positio'nlto rable, and such tire'rims liaving circumferencontractthe tire, and showingby dotted lines Y y tial channels at the middle portions oftheir the tire in its contracted position'and the tool 60 tire receiving sides, such as tire rims'iii use o n in its V*contracting position; 2 is Y' au side automobiles known as Ford automobiles; sec- `View lof my tool separate and apart from the ond, to provide a toolof this class whereby the tire and the tire rim; Fig-3 is a side vicwzof 5 Yopp'osite'sides of pneumatic tiresmay be-conmy tire tool in aslightly'modied form Yof tracted relativeto each otherA so `th'attheir Y construction; and, Fig is a side elevational bead portions may be easily forced together view of my tool in still anotherslightly modito facilitate the-*entry of the portionsof the fied form of construction, and also'showing beads l-forcedtogether into the circumferenfragmentarily byy dotted lines the tool infv its tial channel of the tire rim so that the diametcontracting position. i e rically opposite-sideof the tire may be easily Like characters ofreference refer tosimi- 70 and quickly shifted to one-side beyond the tire lar parts and portions throughout the several' rini for removing the tire therefrom aiidfor views of the drawings. t f Y. .i 1 similarly mounting the tire thereon;-third, to Thel tire rim, designated A, inf-this inl5 provide a tool of this class which will engage stance forms' also the rim or felly of the considerable portions of the opposite sides of Wheel.' This rim iS pIOVded. at tS pPOStc 75 the tire andcontract the 'same over a consideredges with' annular flanges A1 for retaining able circumferential extent; fourth, to pro'- the tire, designated B, thereon. Intermevidea tool of'this class 'in which the manual diatethe edges ofthe rim, orat the middle n gripping portions are so arranged as to proportion thereof, is provided an annular chan- Vvide considerablegripping space forthe iinnel A2 extending inwardly toward the cengers of the hand of the operator for eiiicient terof the wheel, thev width of the channel Y operation and for reduction of liabilitytoinT being approximately twice the thickness of jury to aminimum; fifth, to provide'atool lof the bead B1 ofthe tire, and the depth of 3. Vthis class whereby the overall lengtliof the the' channel. .being approximately the height 5 tool'outwardly from the` peripheral portion of the. flanges A1 beyond theirmain tire seatof the tire is reduced to a minimum when the Y ing surface of therim. y a tireis contracted so that theouterportion of vhe tire B may be of the conventional conthe tool beyond the peripheral portion of the struction of tires usually used on demounto time may pass readily between the tire and the able rims.`` The inner tube, designated C, is e fender of the automobile; and, sixth, to proalso ofconventional construction and is sep- 90 Vvide as a whole, a novellyconstructed tool of arated in the usualmanner from the tire this class and one which is particularly simrim by the flap Al), which-in this instance is ple and economical ofconstruction, durable slightlyV heavierthan the conventional flap and which will not readily deterioratev` orget and extends partially into the channel A2. a out of order. l When .demoiinting a. tire of this kind from With these and other objects in view, as will the tire rim,'the opposite Asides' are contracted l appear hereinafter, my invention consists of 'to approximately the position shown byVV certain`novel features of construction, combidotted lines ofthe tire in Fig. 1 until the nation and arrangement .of parts and porbead portions Blrare forced together, the intiens, as Wiii be hereinafter described in dener tube o and the flap D being forcee in- CD i ed radially beyond the flanges A1 andto be forced to the side beyond and freeof the rim. TheA portion of the tire,icontracted as otallyjconnected a rivet 3, seat or i At the ends' ofthe portions or arms la andV i being of the `.when

stated, and as shown by dotted linesin l, is then lifted fromlthe channel A2 and from the rim. The mounting of the tire on the rim is effected in reverse order.

My tire tool for contracting the tire, asfV stated, consists in one embodiment as shown in Figs. l and 2, of a pair of tong or tire contractingmembers l and 2 which are pivintermedia-te theirgends tire engaging members 4, and a catch or holding member 5. 'i The tong members l andl 2 are for the most part symmetrical in construction, the 'same providedsat one side of their pivotal connection with outwardly bulged portions la and 2a respectively, side of their'pivota'l connection-with arms forming manual grip portions'lb and 2b respectively. The portions intermediate the outwardly bulged and manual grip portions ofpeach of the membersvlY and 2 are offset inwardly' or toward each other and are provided at such intermediate portions with spacedlugs lciandQc respectively "which overlap each other and are pivotally vconnected by the pin or rivet 3. The curvature bulged portions la and 2a is such that said portions are separated, as shown by solid lines in Fig. 1, suiicient clear space is provided for receiving a portion ofthe Y tire B, the portions or arms la and 2a extending to the opposite sides of the tire;

2a are provided wide tire'engaging portions which are preferably in the form of tire engaging or seat members 4 pivotally connected to said ends of said members l and 2 by pins A6 which extend through eyes at said ends of the members l and 2. The members 4 are preferably made of sheet metal in the form of channels with their flanges 4a directed` inwardly in diverging form and adapted to engage at their edges in the'outer sides of the tire. These members 4 are also preferably arcuate, as shown in 2, so as to conform substantially with the curvature circumferentially of theouter sides of the tire. These tire engaging members 4 are of considerable length for engaging and contracting as large a' portion of the tire as practicable, and are pivota'lly connectedv at their outer sides andrintermediate their ends to the members l andi2, as stated. -.The pivotal connection is preferably effected by forming lugs at the outer sides ofthe members 4 by punching portions of the members 4 outwardly, as-indicated by 4b,k The pivin a similar manner but Y and at l the opposite slot between the opposite for holding the tire in a fere with the flanges A1 when coi'itracting thetire or whenagain releasing the same, the clearance being shown bythe relation of the dotted line vpositions oftheniembers 4 andthe flanges A1. The anges 4a ofthe ineinbers'4 are beveled, particularly the more remote or outeranges 4a, so that when the contracting forcefagainst the tire is released, when the tire is already placed on the rim, themembers 4 will be automatically forced radially outwardly from the rim if they should en gagek the'flanges A1,v thus preventing the members 4 from being clamped between the flanges A1 and the tire B.

' The manual grip portionsor arms lh and 26 are offset outwardly so as'to provide ample space between said arms fon the-lingers of theoperator when separating saidv arms and'fcontracting the portions la and 2a, and also for the purposel 0f bringing the extended ends of said arms as far apart as practicable so that-'when the same are separated to the positions, as shown by dotted lines, or beyonds'uch positions, the distance of the ends of the arms outwardly from the pivotal con'- 1 :I

nection of themembers l and 2, or the distance outwardly from the peripheral portion of the tire, 'will be as' small as possible so that the portion of the tool extending beyond the peripheral portion of the tire maybe readily shifted lbetween thetire and the fender of the automobile. i

At the free end of the arm 1b is pivotally mounted, by means of a pin 7 a serrated catch yor holding arm 5 which may be considerably narrower than the members l and 2, as shown and mounted ina edges of the member Vl.' One lside of the member 5 is provided with teeth 5a which are Vby dotted lines in Fig. `2,

2b, Whenithe arms 'la and 2a are contracted contracted position,

themember 5 falling loosely against the arm 2b. The end of the arm 2b is turned inwardlyslightly so as fromslippingoff vThe end is also slightly to prevent the fingers beveled so'ras to permit the sameV to engage the seat 5a readily. .i

In order to` limit the placing of the tool over and around a tire, particularly when the tire is to be mounted on a rim, so that the tire engaging members 4 are not positioned'tooclosely to the beads B1 of the tire,

thus preventing interfering of the members 4 1n any way with the tire rim, there may Abe provided lugs 2d on the lugs 2c, as shown.

These lugs 2d are preferablymade relatively narrow so that the Vsame may be' readily lshifted out of the way of the tire when the preferably at an angle,.orz

l preferably beveled, adapted to engage the .free end of the arm lll) ' shorter and tool shown in Fig. y3 is similarto thatshown f in Figs. 1l and 2, but in this case the teeth `are providedfat the inner side of Vthearm The catch or hold- 5 in this instance is considerably positioned between the aifms l?) v andQb andV serves as a pawl for engaging at its freeend the teeth 2e. In this construction the arm 1b is odset laterally providing Zb, las indicated by 20. ing member a'grip portion between the arm and the pawl lin'such relation to the pawl that as the arms l?) and 2b are separated, the pawl 5 may be forced' into engagement with the teeth 2e by the fingers of the handgripping the arm 1b, or the pawl may be forced into engagement with the teeth by any other suitable means.

yIn this construction also theportionron the arm 2?) adapted to be engaged or gripped by the hand is preferably extended beyond the outer end of the arm 1b in such a man.- ner that the arm 2b may be pushed `while the arm 1b may be-'pulled, thus separating the two. In this modification, the tire engaging portions or members 4 cannot be released as easily as in the construction first described, but the two arms 1b and 2b must l first be forced apart manually. v

' The tool shown in Fig. 4 may be of larger construction and adapted primarily for use l in tire shops or service stations with the members 1 and 2 stronger and the arms 1b and 2?) longer. In this modication, the tool is operated as a pair of pliers in which the members are contracted relative to each other as the handles or arms 1b and 2b are forced together. The tool in thislatter 1nodification is made of strap iron, as in the other constructions described, but the pivotal portions of the members 1 and 2 in this instance are formed by twisting a portion of the members l and 2 intermediate their ends so that vthe wider fiat sides are movably positioned against each other and pivotally connected by a rivet 3 extending transversely therethrough. These twisted portions may. alsoV limitedtothis particular construction, come 'i' Y bination and arrangement, cations, but desirev to'include in the scope of my invention the construction, and arrangement of' partsl and portions substantially as set forth Ain the appended claim. I-Iaving thus described'my invention', what I claim as new and desire to secure by Letters Patent is:

In a pneumatic tire tool of the classide i scribed, a pairyoff pivotally connected tong members,and' long, wide, deep tire engagmg nor to the modifie Y, i'

'combination' Y .A

members pivotally Vconnected to the ends of' -said tong membersin opposed relation to each other, the lower outer sides of said tire engaging members the tire rim. Y l l In testimony whereof, I have hereunto set my hand lat Los Angeles, California this 23rd day of April 1928.

" f VJ AMES A. GOODMAN.

l being beveled to facilitate theexpansion of the tire tothe'flanges of extend the greater portion of the extent of Y the outwardly bulged arms la and 2a so as to provide a stronger construction.

At the free end of the arm 2b is pivotally mounted a link 8 which, when the two arms 1b and 2b are forced together, as shown by dotted lines, the link may be rotated around I the free end of the arm 1b" into engagement with a notched or hook portion 1d at said end, as-shown.

Though I have shown and described aparticular construction, combination and arrangement of parts and portions, and certain modifications thereof, I do not wish to be iso' 

